Randomized Controlled Trial of Fiber Post Restorations

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01532947
Recruitment Status : Completed
First Posted : February 15, 2012
Last Update Posted : February 15, 2012
Information provided by (Responsible Party):
Prof. Marco Ferrari, University of Siena

Brief Summary:
This in vivo study examined the contribution of remaining coronal dentin and placement of a prefabricated or customized fiber post to the six-year survival of endodontically treated premolars. A sample of 345 patients provided 6 groups of 60 premolars in need of endodontic treatment. Groups were classified according to the number of remaining coronal walls before abutment build-up. Within each group, teeth were allocated to three subgroups: A) no post-retention; B) LP; C) ES (N=20). All teeth were protected with a crown. Cox regression analysis was applied to assess whether the amount of residual coronal dentin and the type of endocanalar retention had a significant influence on failure risk of the restored teeth.

Condition or disease Intervention/treatment Phase
Restoration Survival Procedure: post placement Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 360 participants
Allocation: Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Survival of Endodontically Treated and Restored Premolars: A Randomized Controlled Trial
Study Start Date : January 2003
Actual Primary Completion Date : June 2005

Arm Intervention/treatment
Experimental: post restoration Procedure: post placement
placement of an endocanalar post
Other Names:
  • Prefabricated post DT LightPost, RTD
  • Customized post, EverStick Post, StickTech

No Intervention: no post restoration
no post placement

Primary Outcome Measures :
  1. survival [ Time Frame: 2 years ]

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Ages Eligible for Study:   18 Years to 76 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • endodontically treated premolars with symptom-free root canal filling and a minimum apical seal of 4 mm, in occlusal function with a natural tooth and in interproximal contact with two adjacent natural teeth.

Exclusion Criteria:

  • periapical lesion on the X-ray.